Pith Number

pith:L6BEKEBM

pith:2025:L6BEKEBMLYS53IZWCU3BR4N2HW

not attested not anchored not stored refs pending

Colorful Helly via induced matchings

Cosmin Pohoata, Kevin Yang, Shengtong Zhang

arxiv:2501.17149 v2 · 2025-01-28 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6BEKEBMLYS53IZWCU3BR4N2HW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T10:06:48.398949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f8245102c5e25dda336153618f1ba3dbebf086a0405b0742b230550cc891249

Aliases

arxiv: 2501.17149 · arxiv_version: 2501.17149v2 · doi: 10.48550/arxiv.2501.17149 · pith_short_12: L6BEKEBMLYS5 · pith_short_16: L6BEKEBMLYS53IZW · pith_short_8: L6BEKEBM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/L6BEKEBMLYS53IZWCU3BR4N2HW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5f8245102c5e25dda336153618f1ba3dbebf086a0405b0742b230550cc891249

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ec02b9f6f8dcc2112edc180c891d988a2bc3e78d1a59d68b6552d458f9e788a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-01-28T18:51:42Z",
    "title_canon_sha256": "5c011314ea1c84b667c1165dab59f0756f0f25499e236023ebf3f9cdc9d385b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.17149",
    "kind": "arxiv",
    "version": 2
  }
}